Hopper



FIG. 1 shows a side perspective view of a hopper;

FIG. 2 shows a front view thereof;

FIG. 3 shows a top view thereof; and,

FIG. 4 shows a bottom view thereof.

The appearance of any surfaces not shown, such as interior surfaces, form no part of the claimed design. The broken lines depict unclaimed features of the hopper, shown for purposes of illustration, and form no part of the claimed design. 

CLAIM I claim the ornamental design for a hopper, as shown and described. 